Chimney.



PATENTED JUNE 12, 1906.

' C. WEBER.

CHIMNEY. APPLIGATION FILED JUNE 22, 1905.

SHEET 1 IIIIIIIIII No. 823,197. P ATENTED JUNE l2, 1906;

C. WEBER. GHIMNEY.

APPLICATION FILED JUNE Z2. 1905.

3 SHEETS-SHEET 2.

3 vSHEETS-SHEET 3.

faz/e7? 1707.

PTENTED JUNE l2, 1906.

c. WEBER. GHIMNBY. n APPLICATION FILED JUNE 22, 1.905.

IOl

"UNITED srirrns rafrnnrorrroa.

citan WEBER, Or cnIcAco, ILLINOIS.

CHIMNEY. i

Specification of Letters Fatent.

Patented June 12, 1906.

Apprenti iisd June 22.1905. Serial No. atenas.

My invention relates to an improvement in the Vconstruction of the lchimney for which' Letters Patent of the United States No.

748,242 were granted to me December 29,

The more important feature of novelty n volved in my patented construction is the circumferential air-space about the base portiony of the chimney, this air-space being formed by an outer wall and an inner wall united at the upper end of the air-chamber, the union containing a circumferential series of inclined tubular openings. affording communication with the air-space of' the interior of the upper single-walled section of the chimney at the base of that section and of the lat- The construction thus outlined, while it has proved itself to be generally desirable, is'not suitable for some instances of theuse'olc the chimney, and particularly when products of combustion which olf through the stack are of a character which tends to render them explosive by feeding them with copious quantities of air, such as would be supplied by free air circulation through thechimn'ey. While this air circulation can be controlled by partiallyy or wholly closing the air-inlet openings in the outer wall, the resultant deprivation-of the chimney of the cooling tendency of the air causes the heat in the chimney to exert a degree of differential contraction and expansion of the air-space walls so great as to tend te crack and even destroy the union at their upper ends.

The primary obj-ect of my present inI' provement lis to provide a constructionof the air-space which shall causeits walls to remain unaffected inuriously-under the condi tions referred to,v and my invention consists viewside elevation. 55

inthe construction whereby this object is accomplished. i

Referring to the accompanying drawings, Figurel shows my improved chimney by a ig. 2- isa verticalpartlv sectional view7 diagrammatic in its nature, of that portion of the chimney contained between the ends ofthe bracket 3 ,on

Fig. 1; Fig. 4, a section taken at the line 4 on Fig. l, viewed'in the direction of the arrow and enlarged; Fig. 5, a section taken at the line 5 on Fig. l viewed in the direction ofthe arrow and enlarged; Fig. a broken' enlarged view showingthe base or foundation of the chimney'in sectional elevation; and

Fig. 7, a diagrammatic plan Viewr ofthe Chim-' ney base or foundation, taken atthe line 7 on Fig. and viewed in the direction of the arrow. l

To construct lthe chimney A embodying my improvement, a foundation or base C is laid, composed of intersecting layers of horizontal metal T-beams a at intervals em-l bedded in concrete b and surmounted by a b ed of concrete c, with the beams in staggered relationfrom one layer to another, and metal T-beams d to form a circumferential 'series I' hereof for the outerwall A of the lower secter with the' outer air at openings in the outer i wall ofthe air-space, whereby a circulation of air is established through the chimney.

tion ofthe chimney are embedded in the base C along their lower end portions,.which are ,bent to extend obliquely outward, Figs. G and 7,'the better to anchor them, and between beams o and from the embedded Vportions of these beams they. extend vertically upward, preferably to varying heights. To form the inner wall A2 for producing the airspaceB, metal T-beams d/ 'are embedded at their lower' ends in circumferential series in the circumference described by the beams d in the concrete of the base C to extend vertically upward,.preferably to varying heights. About each series of beamsd and d is molded concrete d? to a convenient height in each molding operation, and at intervals of, say, about three and one-half feet, Inore or less, I encircle the outer series of beams d with similar beams d, reduced to annular form with the en'ds of each overlapping', as represented at on Fig. 3. These annular beams are applied successively as the concrete is built up by molding to extend to the' different points at which the annular beams are to be placed, sothat each in being placed fInds bearing on the top of v theunfinished portion of the 'wall lbelow it. As the originally-placed beamed` and d become nearly thus embedded, another vertical beam is appliedto each, preferably in the lap-joint relation represented of beams d vat :cf von Fig. 3,

sectionig. 3, an `enlarged, broken, and l both walls A A2 proceeds to .the deslred IOO and the-'molding of I IC glie-walled portion height-say about thirty-seven feet, more or less-from which point the outer beams d employed are bent inwardly to an angle, as

vshown at c on Fig. 3, to deflect them accord-` sa about four to five feet, more or less.`

. ere the beams' d are deiected, as at v, an obligue ledge D is molded. T e description thus far applies also to the l construction set forth in my aforesaid pa tent.

In the inner surface of the outer wallA, be-

` low the planel of the ledge D, is formed an annulal1 odset of rectangular cross-section, affordmg an ex ansion-chamber B of somewhat greater iameter than that of the inner vwall A2, the upper end of which enters the expansion-chamber to the extent of about one-half the height of the latter, thereby leaving room, both laterally and upwardly, for the expansion ofthe inner wall, which is thus free 'from the outer wall'and remains unaffected by expansion and contraction of the latter.

An opening gis provided in my present as 1n my said former construction near the base of the chimney for connectin it with the smoke-flue of a furnace, and be ow the plane of that opening another opening is formed through whichto clean the liue, closed b a door h, and at the base of which is provided stone slab 'i in the 'chimney-flue; but openings like the opening e shown in Fig. 6, through which the air-space B. communicates with the outer air, should be few in number or very small, if provided at all, though they may be partially or wholly closed under certain condi- Ations of the use of' the chimney. However, expansion of the'inner wall A? in the chamber Bf so farreduces the outlet into the single-wall section'of the chimney for' air circulating through the space B as to reduce to the minimum the danger of explosion, hereinbefore rie-- ferred te.

What I claim as new,`anddesire to secure by Letters Patent, is-

1. A smokeestack, having its lower section composed of an inner and an outer wall, con# structed and arranged so as to form a circum- 4ferential air-space open to the atmosphere and its upper sectlon composed of 'a single Wall which is a continuation of saidouter wall,

the latter constructedlwith a led e-arrang'ed to support laterally the top of sai 'inner wall llatter an interposed airfspas an "section composed lof, a single wall, a tending oblique'ly fromfthe upper end ofsald Wall and an inner wall free at its upper end from said outer wall and forming with the latter an interposed air-space, an expansionspace, above the top of the inner Wall, into' of said inner; wall .eX--

which the upper end tends, and the upper'chimneyr-sectio-ncoms posed of a single wall joined at' its base to the upper end of said outer walL` 3. A chimney of the character described, having its lower section composedof an outer wall and an inner wall free at its upper end from said outer wall and forming with the latter an interposed air-space, and its upper sec- -tion composed of a single wall, a ledge 'extending obli uely from the upper end of said outer wall and forming the .junction therewith of said upper section, Asaid ledge constructed and arranged to support, .peripherally, the top of the inner wall. y y

4. A' chimney, of the character described, having its lower section composed of an outer wall and an inner wall free at its upper end from said outer wall and forming with the latter an interposed air-space, an'expansionchamber formed in the inner surface of said outer wall, into which the upper end of said inner walls extends, and the upper chimneysection composed of a single wall joined at its base to the upper end of said outer Wall.

5. A chimney of the character described,

having its lower section composed of an outer wall and an inner wall free an its upper end from said outer wall and formin latter an interposedair-space, and section composed of a single wall, a tending obliquely-rom the upper end vof said outer wal-l and forming the junction therewith of said upper section, and an expansionchamber formed inthe inner siirface of said outer wall below the'pla e of said ledge and' into which the upper enxd offsaid inner wall extends:

6f A chimney of the'character described, lhaving its lower sectioncomposed of an outer with. the

its upper' ledge .cxl IOC IIO

wall and an innerwall free at its upper end from said outer Welland formin with vthe its upper 'ner surface of said outer Walladjacept to saidl ledgeA and forming an' expansion-chamber ledge eie-4 ricv into which thefnpper' end of said inner wail' I extends.

. l CARL .WEBEB..

In presence of'- LJHEIsLAR, Hf-LANDES. 

